When creating email templates, you can include the following tokens within the email subject line:

i. [companyname]

ii. [guestname]

iii. [bookingid]

iv. [propertyname]

v. [propertytitle]

vi. [propertyid]

vii. [bedrooms]

viii. [ownername]

ix. [balanceduedate]

x. [arrivaldate]

xi. [departuredate]

xii. [numnights]

Please note, these are the only tokens that are supported so if you use a token that's not listed here, it won't populate when you send the email.